Dynamic contact analysis of thrust tapered roller bearing based on finite element method
                                                          WEI Yangang，SONG Yumer，LIU Yankui
                                 (School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China)

Abstract: In order to replace thrust cylindrical roller bearings with thrust tapered roller bearings in shields, the static and dynamic contact analysis of thrust tapered roller bearing used in shields were done based on finite element method，according to contact mechanics theory. The contact force, contact stress, speed and friction loss etc. were analyzed. According to the characteristic of the bearing and the working condition, the research was focused on the velocities of the roller and the moving ring, the contact forces and the contact stresses between the roller and the moving ring and the sliding friction between the roller endface and the ring ribs. The results show that the stress concentrations caused by contact edgeeffect between roller and ring exist at the roller ends, and that the sliding friction loss is mostly from the sliding between roller endface and ring ribs and the friction loss capacity factor is calculated with FEA. The presented paper offers a research base and a reference for thrust tapered roller bearings to use in shields.

Key words: thrust tapered roller bearings；dynamic analysis；contact stress；friction loss；finite element method